Alaska Airlines
flight
AS 421:
Seattle-Tacoma - San Jose del Cabo via Las Vegas Harry Reid
Seattle-Tacoma - San Jose del Cabo via Las Vegas Harry Reid
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS421
Effective 2026-06-10 through 2026-10-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:06, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS421
Valid until 2026-01-03
Mon
Tue
Wed
Thu
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Fri
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Sat
Sun
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Duration: 4:21, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS421
Valid until 2026-01-06
Mon
Tue
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Duration: 4:21, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS421
Effective 2026-02-12 through 2026-03-06
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 4:25, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS421
Effective 2026-02-14 through 2026-03-07
Mon
-
-
Tue
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-
Wed
-
-
Thu
-
-
Fri
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-
Sat
Sun
Duration: 4:25, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS421
Effective 2026-03-08 through 2026-03-17
Mon
Tue
Wed
Thu
-
-
Fri
Sat
-
-
Sun
Duration: 4:25, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS421
Effective 2026-03-12 through 2026-03-14
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
-
-
Sat
Sun
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-
Duration: 4:25, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS421
Operates only on 2026-03-18
Mon
-
-
Tue
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Wed
Thu
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Fri
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-
Sat
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Sun
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-
Duration: 4:20, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS421
Effective 2026-03-19 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:30, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS421
Effective 2026-01-07 through 2026-01-17
Mon
-
-
Tue
-
-
Wed
Thu
Fri
-
-
Sat
Sun
-
-
Duration: 4:24, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS421
Effective 2026-01-09 through 2026-02-06
Mon
-
-
Tue
-
-
Wed
-
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Thu
-
-
Fri
Sat
-
-
Sun
-
-
Duration: 4:24, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS421
Effective 2026-01-12 through 2026-01-13
Mon
Tue
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 4:24, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS421
Effective 2026-01-19 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
-
-
Sat
Sun
-
-
Duration: 4:24, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS421
Effective 2026-02-04 through 2026-02-11
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 4:24, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS421
Effective 2026-02-05 through 2026-02-09
Mon
Tue
-
-
Wed
-
-
Thu
Fri
-
-
Sat
Sun
-
-
Duration: 4:24, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS421
Effective 2026-01-11 through 2026-02-08
Mon
-
-
Tue
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-
Wed
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-
Thu
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-
Fri
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-
Sat
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-
Sun
Duration: 4:17, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS421
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:41, non-stop
Boeing 737 (73J)
Boeing 737 (73J)
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Parallax here SEA-SJD
- AS 421 is an international flight departing from Seattle-Tacoma airport, United States (SEA) and arriving at San Jose del Cabo airport, Mexico (SJD).
- The flight runs via Las Vegas Harry Reid (LAS).
- The flight distance is 1816 miles, or 2923 km.
- The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-7 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.